I've been using noggit for the past few weeks. I will admit that for a while I was more into yias edit, but only because it had a better frame rate. I just recently realized that I can disable water and fog in noggit, and that helped tremendously. In any case, I am almost finished with creating a custom area. Noggit has only crashed a few times, but has picked up working again after I applied the patch to my client. Overall, I am impressed with what I've seen from rev 120 and I cant wait to see what later versions have to offer